St. Clair County Storm Activity
Wind, hail, and tornado activity from official NOAA sources (NWS & SPC) · Last 12 months · Updated Sep 11, 2026
St. Clair County, Michigan has recorded tornado activity: official National Weather Service (NWS) and Storm Prediction Center (SPC) records list 1 tornado report among 52 severe weather events here in the last 12 months, alongside 29 hail reports with hail up to 2" and 22 high-wind reports with gusts up to 60 mph. The most recent recorded storm activity was in September 2026. This page updates daily: every event comes straight from official NOAA data — no estimates, no modeling, just the record.
What the radar showed
Last 30 days in St. Clair County
Recent storms — full detail available in the app
Storm activity from the last 30 days is summarized at the county level on this page. Exact locations, radar snapshots, and official warning boundaries for recent events are available with a free account.
See the specifics — free →Storm log — the official record, day by day
Events older than 30 days, as recorded by the National Weather Service and Storm Prediction Center. Excerpts are quoted directly from official warnings and verified reports.
Wednesday, August 12, 2026
2 NWS warnings — hail up to 0.25"
“At 513 PM EDT, Doppler radar indicated strong thunderstorms along a line extending from near Croswell to near Lakeport. Movement was east at 35 mph. Hazard: Wind gusts near 40 mph and pea size hail with heavy rainfall. Impact: Gusty winds could damage unsecured objects. Strong thunderstorms will be near... Croswell and Lakeport around 515 PM EDT. Lexington around 520 PM EDT.”
“At 342 PM EDT, Doppler radar indicated clusters of strong thunderstorms extending from 6 miles east of Lakeport to 6 miles west of Port Huron. Movement was east at 20 mph. Hazard: Winds gusts to 40 mph and pea size hail. Impact: Gusty winds could damage outdoor objects. Strong thunderstorms will be near... Port Huron around 400 PM EDT.”
- Hail 0.25" St. Clair County NWS severe weather mention
- Hail 0.25" St. Clair County NWS severe weather mention
Tuesday, July 21, 2026
1 NWS warning — hail up to 0.5"
“At 241 PM EDT, Doppler radar was tracking a strong thunderstorm over Marysville, or near Port Huron, moving east at 30 mph. Hazard: Wind gusts up to 50 mph and half inch hail. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Minor damage to outdoor objects is possible. Locations impacted include... Port Huron, St.”
- Hail 0.5" St. Clair County NWS severe weather mention
Saturday, July 18, 2026
1 SPC verified storm report · 2 NWS warnings — hail up to 0.75"
“At 315 PM EDT, Doppler radar was tracking strong thunderstorms along a line extending from near Marine City to near Mount Clemens to near Macomb Township. Movement was southeast at 45 mph. Hazard: Wind gusts up to 50 mph and penny size hail. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Minor damage to outdoor objects is possible. Locations impacted include...”
“At 130 PM EDT, Doppler radar was tracking strong thunderstorms along a line extending from Lexington to near Peck to near Melvin. Movement was southeast at 40 mph. Hazard: Winds in excess of 40 mph and half inch hail. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Minor damage to outdoor objects is possible. Strong thunderstorms will be near...”
- Hail 0.75" St. Clair County NWS severe weather mention
- Hail 0.5" St. Clair County NWS severe weather mention
- Wind Unknown 1 N St. Clair SPC verified report
Thursday, July 9, 2026
1 NWS warning — hail up to 0.25"
“At 713 PM EDT, Doppler radar was tracking a strong thunderstorm near Lakeport, moving east at 35 mph. Hazard: Winds in excess of 40 mph and pea size hail. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Minor damage to outdoor objects is possible. This strong thunderstorm will be near... Lakeport around 720 PM EDT.”
- Hail 0.25" St. Clair County NWS severe weather mention
Saturday, July 4, 2026
1 NWS warning — wind gusts up to 50 mph
“At 516 PM EDT, Doppler radar was tracking a strong thunderstorm over Richmond, moving east at 30 mph. Hazard: Wind gusts up to 50 mph. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include... Richmond, St. Clair, Marine City, and Adair.”
- Wind 50 mph St. Clair County NWS severe weather mention
Friday, July 3, 2026
1 SPC verified storm report
“Report of several large healthy tree branches down around Algonac State Park (DTX)”
- Wind Unknown 1 W Roberts Landing SPC verified report
Thursday, June 25, 2026
4 SPC verified storm reports · 3 NWS warnings — hail up to 1.75"
“Many ping pong sized hail stones reported with the largest up to golf ball sized. (DTX)”
“Many ping pong sized hail stones with some golf balls. (DTX)”
- Hail 1.75" Capac SPC verified report
- Hail 1.75" Emmett SPC verified report
- Hail 0.88" St. Clair County NWS severe weather mention
- Hail 1" 3 W Capac SPC verified report
- Hail 0.5" St. Clair County NWS severe weather mention
- Hail 0.5" St. Clair County NWS severe weather mention
- Wind Unknown Marysville SPC verified report
Tuesday, June 16, 2026
2 NWS warnings — hail up to 0.5"
“At 239 PM EDT, Doppler radar was tracking a strong thunderstorm over Richmond, moving northeast at 25 mph. Hazard: Winds in excess of 40 mph and half inch hail. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Minor damage to outdoor objects is possible. This strong thunderstorm will be near... St. Clair and Marysville around 300 PM EDT.”
“At 140 PM EDT, Doppler radar was tracking a strong thunderstorm near Capac, moving northeast at 20 mph. Hazard: Wind gusts up to 50 mph and pea size hail. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Minor damage to outdoor objects is possible. This strong thunderstorm will be near... Emmett around 145 PM EDT. Yale around 150 PM EDT.”
- Hail 0.5" St. Clair County NWS severe weather mention
- Hail 0.25" St. Clair County NWS severe weather mention
Friday, June 12, 2026
1 NWS warning — wind gusts up to 50 mph
“At 118 AM EDT, Doppler radar was tracking strong thunderstorms along a line extending from near Almont to near Clinton Township to near Grosse Ile. Movement was east at 50 mph. Hazard: Wind gusts around 50 mph. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Strong thunderstorms will be near... St.”
- Wind 50 mph St. Clair County NWS severe weather mention
Thursday, June 11, 2026
2 SPC verified storm reports
“Numerous large tree limbs down some on houses along Taft Rd near Muskrat Run (DTX)”
“Photos of snapped and bent power poles... siding damage... and blown in garage doors. Short damage path consistent with straight line winds. (DTX)”
- Wind Unknown 1 NW Pointe aux Tremble SPC verified report
- Wind Unknown 1 W Pointe aux Tremble SPC verified report
Wednesday, June 10, 2026
2 NWS warnings — hail up to 0.5", wind gusts up to 50 mph
“At 951 PM EDT, Doppler radar was tracking strong thunderstorms along a line extending from near Brown City to near Imlay City to near Pontiac to near Livonia. Movement was east at 45 mph. Hazard: Wind gusts up to 50 mph. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Strong thunderstorms will be near... Romeo, Capac, and Sterling Heights around 955 PM EDT.”
“At 747 PM EDT, Doppler radar was tracking a strong thunderstorm near New Baltimore, moving northeast at 25 mph. Hazard: Wind gusts up to 50 mph and half inch hail. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Minor damage to outdoor objects is possible. Locations impacted include...”
- Wind 50 mph St. Clair County NWS severe weather mention
- Hail 0.5" St. Clair County NWS severe weather mention
Tuesday, June 9, 2026
1 NWS warning — hail up to 0.25"
“At 525 PM EDT, Doppler radar was tracking strong thunderstorms along a line extending from near Brown City to near Rochester to near Salem. Movement was east at 25 mph. Hazard: Winds in excess of 40 mph and pea size hail. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Minor damage to outdoor objects is possible. Locations impacted include...”
- Hail 0.25" St. Clair County NWS severe weather mention
Tuesday, May 19, 2026
1 SPC verified storm report · 2 NWS warnings — hail up to 0.75"
“At 316 PM EDT, Doppler radar was tracking a strong thunderstorm near Almont, moving northeast at 40 mph. Hazard: Wind gusts up to 50 mph and penny size hail. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Minor damage to outdoor objects is possible. This strong thunderstorm will be near... Capac around 320 PM EDT. Yale around 335 PM EDT.”
“At 217 PM EDT, Doppler radar was tracking strong thunderstorms along a line extending from Milford to Hamburg to near Chelsea. Movement was northeast at 45 mph. Hazard: Winds in excess of 40 mph and half inch hail. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Minor damage to outdoor objects is possible. Strong thunderstorms will be near...”
- Hail 0.75" St. Clair County NWS severe weather mention
- Hail 0.5" St. Clair County NWS severe weather mention
- Wind Unknown 1 NE Adair SPC verified report
Wednesday, May 13, 2026
1 NWS warning — hail up to 0.5"
“At 157 AM EDT, Doppler radar indicated a cluster of strong thunderstorms along a line extending from near Peck to near Metamora to near Hartland. Movement was east at 40 mph. Hazard: Winds in excess of 40 mph and half inch hail. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Minor damage to outdoor objects is possible. Strong thunderstorms will be near...”
- Hail 0.5" St. Clair County NWS severe weather mention
Saturday, May 9, 2026
1 NWS warning — hail up to 0.5"
“At 246 PM EDT, Doppler radar was tracking strong thunderstorms along a line extending from near Memphis to Rochester to near Northville. Movement was east at 45 mph. Hazard: Wind gusts up to 50 mph and half inch hail. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Minor damage to outdoor objects is possible. Locations impacted include...”
- Hail 0.5" St. Clair County NWS severe weather mention
Sunday, May 3, 2026
1 SPC verified storm report
“Report of minor roof damage to mobile homes. (DTX)”
- Wind Unknown Marine City SPC verified report
Wednesday, April 15, 2026
1 NWS warning — wind gusts up to 50 mph
“At 1259 AM EDT, Doppler radar was tracking strong thunderstorms along a line extending from Brown City to Almont to near Rochester. Movement was east at 30 mph. Hazard: Wind gusts up to 50 mph. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include... Warren, St. Clair Shores, Port Huron, Mount Clemens, New Baltimore, Richmond, St.”
- Wind 50 mph St. Clair County NWS severe weather mention
Tuesday, March 31, 2026
3 NWS warnings — hail up to 0.25", wind gusts up to 50 mph
“At 616 PM EDT, Doppler radar was tracking strong thunderstorms along a line extending from Almont to near Rochester. Movement was east at 50 mph. Hazard: Wind gusts up to 50 mph. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include... Warren, Mount Clemens, New Baltimore, Richmond, St.”
“At 420 PM EDT, Doppler radar was tracking a strong thunderstorm over Capac, moving east at 50 mph. Hazard: Wind gusts up to 50 mph and pea size hail. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Minor damage to outdoor objects is possible. Locations impacted include... Port Huron, St.”
- Wind 50 mph St. Clair County NWS severe weather mention
- Hail 0.25" St. Clair County NWS severe weather mention
- Hail 0.25" St. Clair County NWS severe weather mention
Sunday, March 15, 2026
2 NWS warnings — wind gusts up to 50 mph
“WHAT...East wind 20 to 30 mph shifts south this afternoon while increasing to gusts of 45 to 50 mph. WHERE...Southeast Michigan along and south of the I-69 corridor, including metro Detroit to the Ohio border. WHEN...Until midnight tonight. IMPACTS...Gusty winds will be capable of damaging unsecured objects. Tree limbs could be blown down and a few power outages may result.”
“WHAT...South winds 20 to 30 mph with gusts of 45 to 50 mph in the afternoon. WHERE...Along and south of the I-69 corridor, including metro Detroit to the Ohio border. WHEN...From 11 AM this morning to midnight EDT tonight. IMPACTS...Gusty winds will be capable of damaging unsecured objects. Tree limbs could be blown down and a few power outages may result.”
- Wind 50 mph St. Clair County NWS severe weather mention
- Wind 50 mph St. Clair County NWS severe weather mention
Friday, March 13, 2026
3 NWS warnings — wind gusts up to 60 mph
“WHAT...West winds 25 to 35 mph with gusts up to 60 mph. WHERE...All of Southeast Michigan WHEN...Until midnight EDT tonight. IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles.”
“At 1239 PM EDT, Doppler radar was tracking gusty showers along a line extending from near Imlay City to Livonia to Adrian. Movement was east at 35 mph. A wind gust of 71 mph was observed in Ann Arbor, with widespread gusts in excess of 55 mph. A High Wind Warning remains in effect through this evening. Hazard: Wind gusts in excess of 55 mph.”
- Wind 60 mph St. Clair County NWS severe weather mention
- Wind 55 mph St. Clair County NWS severe weather mention
- Wind 50 mph St. Clair County NWS severe weather mention
Thursday, March 12, 2026
1 NWS warning — wind gusts up to 55 mph
“WHAT...Southwest winds 25 to 35 mph with gusts up to 55 mph possible. WHERE...All of southeast Michigan. WHEN...From late tonight through Friday evening. IMPACTS...Damaging winds could blow down trees and power lines. Widespread power outages are possible. Travel could be difficult, especially for high profile vehicles.”
- Wind 55 mph St. Clair County NWS severe weather mention
Wednesday, February 18, 2026
2 NWS warnings — hail up to 0.88"
“At 703 PM EST, Doppler radar was tracking a strong thunderstorm over Richmond, moving east at 45 mph. Hazard: Winds in excess of 40 mph and nickel size hail. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Minor damage to outdoor objects is possible. Locations impacted include... New Baltimore, Richmond, St.”
“At 642 PM EST, Doppler radar was tracking a strong thunderstorm over Capac, moving east at 45 mph. Hazard: Winds in excess of 40 mph and penny size hail. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Minor damage to outdoor objects is possible. Locations impacted include...”
- Hail 0.88" St. Clair County NWS severe weather mention
- Hail 0.75" St. Clair County NWS severe weather mention
Tuesday, February 17, 2026
1 SPC verified storm report — hail up to 1.25"
“Social media report with images of half dollar sized hail in China Twp. (DTX)”
- Hail 1.25" 3 SW GW0162 Saint Clair SPC verified report
Monday, December 29, 2025
1 NWS warning — wind gusts up to 60 mph
“WHAT...Southwest to west winds 25 to 35 MPH with frequent gusts 45 to 55 MPH. A few gusts to 60 MPH are expected. WHERE...All of southeast Michigan. WHEN...Until 9 PM EST this evening. IMPACTS...Damaging winds will blow down tree limbs and power lines. Scattered power outages are expected. Travel will be difficult, especially for high profile vehicles.”
- Wind 60 mph St. Clair County NWS severe weather mention
Sunday, December 28, 2025
2 NWS warnings — wind gusts up to 60 mph
“WHAT...West winds 25 to 35 mph with frequent gusts of 50 to 60 mph expected. WHERE...All of southeast Michigan. WHEN...Until 9 PM EST Monday. IMPACTS...Damaging winds will blow down trees and power lines. Power outages are expected. Travel will be difficult, especially for high profile vehicles.”
“WHAT...West winds 25 to 35 mph with occasional gusts of 50 to 60 mph expected. WHERE...All of southeast Michigan. WHEN...From midnight tonight to 9 PM EST Monday. IMPACTS...Damaging winds will blow down trees and power lines. Power outages are expected. Travel will be difficult, especially for high profile vehicles.”
- Wind 60 mph St. Clair County NWS severe weather mention
- Wind 60 mph St. Clair County NWS severe weather mention
Today's severe weather outlook
Common questions
When was the last severe storm in St. Clair County, MI?
The most recent recorded event was in September 2026. Official NWS and SPC records show 52 severe weather events in St. Clair County over the last 12 months. Exact dates and locations for recent storms are available in the app with a free account.
Has there been hail in St. Clair County recently?
Yes — 29 hail reports in the last 12 months, with hail up to 2" recorded.
How do I check whether a specific address was affected?
Create a free IDOLCheck account and run an address check. It shows verified storm reports and official NWS warning boundaries around any specific property — county-level pages like this one only tell part of the story.